CVEvulnerability
CVE-2025-38562
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2025-08-19
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
Description
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix null pointer dereference error in generate_encryptionkey
If client send two session setups with krb5 authenticate to ksmbd,
null pointer dereference error in generate_encryptionkey could happen.
sess->Preauth_HashValue is set to NULL if session is valid.
So this patch skip generate encryption key if session is valid.
Affected configurations
• linux linux kernel (>= 5.15 < 6.1.148)
• linux linux kernel (>= 6.2 < 6.6.102)
• linux linux kernel (>= 6.7 < 6.12.42)
• linux linux kernel (>= 6.13 < 6.15.10)
• linux linux kernel (>= 6.16 < 6.16.1)
• debian debian linux 11.0
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://git.kernel.org/stable/c/015ef163d65496ae3ba6192c96140a22743f0353 Patch
- https://git.kernel.org/stable/c/2a30ed6428ce83afedca1a6c5c5c4247bcf12d0e Patch
- https://git.kernel.org/stable/c/922f85e6e88fdea723a26854c3a6dcb4beb8d0b9 git.kernel.org
- https://git.kernel.org/stable/c/96a82e19434a2522525baab59c33332658bc7653 Patch
- https://git.kernel.org/stable/c/9b493ab6f35178afd8d619800df9071992f715de Patch
- https://git.kernel.org/stable/c/9c2dbbc959e1fcc6f603a1a843e9cf743ba383bb Patch
- https://git.kernel.org/stable/c/d79c8bebaa622ee223128be7c66d8aaeeb634a57 Patch
- https://www.zerodayinitiative.com/advisories/ZDI-25-917/ Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html Mailing List, Third Party Advisory